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Article: An adaptive packet scheduling algorithm for efficient downlink bandwidth allocation in UWB based wireless infrastructure networks

TitleAn adaptive packet scheduling algorithm for efficient downlink bandwidth allocation in UWB based wireless infrastructure networks
Authors
KeywordsBandwidth efficiency
Environment adaptation
Fairness
Fast packet scheduling
Packet queuing delay
Short-range communications
UWB (ultra-wideband) systems
Wireless infrastructure networks
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/comcom
Citation
Computer Communications, 2007, v. 30 n. 9, p. 2087-2095 How to Cite?
AbstractA short range wireless infrastructure network, in which multiple UWB (ultra-wideband) WPANs are interconnected, is envisioned to be an important platform for various large scale mobile computing applications. It has been suggested that traditional packet scheduling algorithms used in cellular networks can be used for UWB based short-range networks. Unfortunately, these existing algorithms, e.g., HSDPA, cannot properly balance the conflicting goals of maximizing bandwidth efficiency while providing adequate fairness to users. Recently, an efficient scheme called MTA-ISIR is suggested and is found to be effective under several practical scenarios. Nevertheless, we find that there are still some drawbacks in the MTA-ISIR algorithm. In this paper, we propose two new approaches in which the power level threshold used for handling the fairness is dynamically adjusted for different traffic models. Our first approach is based on the "opportunistic scheduling" concept which enables the scheduler to optimize the bandwidth efficiency without sacrificing fairness. The second approach makes use of the consecutive packet lengths to prioritize users when assigning time slots. Simulation results indicate that the proposed methods outperform MTA-ISIR under a wide range of parameters. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/73794
ISSN
2015 Impact Factor: 2.099
2015 SCImago Journal Rankings: 0.889
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, Yen_HK
dc.contributor.authorKwok, YKen_HK
dc.contributor.authorWang, Jen_HK
dc.date.accessioned2010-09-06T06:54:49Z-
dc.date.available2010-09-06T06:54:49Z-
dc.date.issued2007en_HK
dc.identifier.citationComputer Communications, 2007, v. 30 n. 9, p. 2087-2095en_HK
dc.identifier.issn0140-3664en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73794-
dc.description.abstractA short range wireless infrastructure network, in which multiple UWB (ultra-wideband) WPANs are interconnected, is envisioned to be an important platform for various large scale mobile computing applications. It has been suggested that traditional packet scheduling algorithms used in cellular networks can be used for UWB based short-range networks. Unfortunately, these existing algorithms, e.g., HSDPA, cannot properly balance the conflicting goals of maximizing bandwidth efficiency while providing adequate fairness to users. Recently, an efficient scheme called MTA-ISIR is suggested and is found to be effective under several practical scenarios. Nevertheless, we find that there are still some drawbacks in the MTA-ISIR algorithm. In this paper, we propose two new approaches in which the power level threshold used for handling the fairness is dynamically adjusted for different traffic models. Our first approach is based on the "opportunistic scheduling" concept which enables the scheduler to optimize the bandwidth efficiency without sacrificing fairness. The second approach makes use of the consecutive packet lengths to prioritize users when assigning time slots. Simulation results indicate that the proposed methods outperform MTA-ISIR under a wide range of parameters. © 2007 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/comcomen_HK
dc.relation.ispartofComputer Communicationsen_HK
dc.rightsComputer Communications. Copyright © Elsevier BV.en_HK
dc.subjectBandwidth efficiencyen_HK
dc.subjectEnvironment adaptationen_HK
dc.subjectFairnessen_HK
dc.subjectFast packet schedulingen_HK
dc.subjectPacket queuing delayen_HK
dc.subjectShort-range communicationsen_HK
dc.subjectUWB (ultra-wideband) systemsen_HK
dc.subjectWireless infrastructure networksen_HK
dc.titleAn adaptive packet scheduling algorithm for efficient downlink bandwidth allocation in UWB based wireless infrastructure networksen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0140-3664&volume=30&spage=2087&epage=2095&date=2007&atitle=An+Adaptive+Packet+Scheduling+Algorithm+for+Efficient+Downlink+Bandwidth+Allocation+in+UWB+Based+Wireless+Infrastructure+Networksen_HK
dc.identifier.emailKwok, YK:ykwok@eee.hku.hken_HK
dc.identifier.authorityKwok, YK=rp00128en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.comcom.2007.04.004en_HK
dc.identifier.scopuseid_2-s2.0-34250652884en_HK
dc.identifier.hkuros131046en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34250652884&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume30en_HK
dc.identifier.issue9en_HK
dc.identifier.spage2087en_HK
dc.identifier.epage2095en_HK
dc.identifier.isiWOS:000248162300013-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLiu, Y=27172089200en_HK
dc.identifier.scopusauthoridKwok, YK=7101857718en_HK
dc.identifier.scopusauthoridWang, J=9332560700en_HK

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